DIRECTORY
Filter by stack, capacity and track record. Every number comes from Google's public archive.
AboutCode.org is a community of open source developers who are trying to make open source easier to use by providing open source tools to discover, identify and track open source components (aka. Software Composition Analysis – SCA). This includes tools, data and standards for code origin, FOSS licenses and security vulnerabilities.
We are dedicated to provide the most effective fuzzing frameworks. Our work includes AFL++, the most effective and flexible fuzzer, and libafl, a library to build your own fuzzer with the most modern techniques and technologies.
Memorize anything with AnkiDroid!<br/><br/>
Foundational library for DBs and compute engines
CCExtractor Development is the creator of the de-facto captions extraction tool - CCExtractor. It is the one tool that is free, portable, open source and community managed that can take a recording from a TV show and generate an external subtitle file for it.
Cloud Native Computing Foundation (CNCF) serves as the vendor-neutral home for many of the fastest-growing open source projects, including Kubernetes, Prometheus, and Envoy.
The Debian Project is an association of Free Software developers who volunteer their time and effort in order to produce and maintain a completely free operating system Debian. Since its launch, the Debian project has grown to comprise more than 1,000 members with official developer status, alongside many more volunteers and contributors. Today, Debian encompasses over 50,000 packages of free, open source applications and documentation.
DORA (Dataflow-Oriented Robotic Architecture) is middleware designed to streamline and simplify the creation of AI-based robotic applications. It offers low latency, composable, and distributed dataflow capabilities. Applications are modeled as directed graphs, also referred to as pipelines.
Free and open wireless networks
The GNOME Foundation is a non-profit organization that believes in a world where everyone is empowered by technology they can trust. We do this by building a diverse and sustainable free software personal computing ecosystem.
Faust (Functional Audio Stream) is a functional programming language for sound synthesis and audio processing with a strong focus on the design of synthesizers, musical instruments, audio effects, etc. Faust targets high-performance signal processing applications and audio plug-ins for a variety of platforms and standards.
Graphite is an in-development raster and vector graphics editing suite that's free and open source. It is powered by a node graph compositing engine that fuses layers with nodes, bringing a generative, procedural approach to the workflows of artists, designers, and animators ranging from students and hobbyists to creative professionals and studios.
Kornia AI is a non-profit organization advancing Spatial Artificial Intelligence through open collaboration. Founded in 2018 and registered as a non-profit in 2023, Kornia AI is supported by a global contributor community. The organization began with Kornia, a widely adopted Python library for Differentiable Computer Vision (>2M downloads/month, 400+ Google Scholar citations). In recent years, the core maintainers have shifted focus to kornia-rs, a native Rust stack for high‑performance 3D computer vision and spatial AI. Our direction emphasizes robotics and edge deployment: safe, memory‑efficient, low‑latency pipelines that run on constrained devices (e.g., embedded/Jetson‑class hardware). kornia-rs is gaining traction in the open-source community and is used by leading companies such as Farm-ng, Rerun.io, and Copper Robotics, who have featured the project on their platforms.
The MetaBrainz Foundation is a non-profit that believes in free, open access to data. It has been set up to build community maintained databases and make them available in the public domain or under Creative Commons licenses.
OpenStreetMap is a crowdsourcing project that creates and distributes free geographic data for the world. Our data is collected by hundreds of thousands of contributors around the globe and released with an open-content license. We allow free access not only to our map products, but all the underlying map data, which powers websites and apps used by billions of people worldwide.
The openSUSE Project is a worldwide effort that promotes the use of Linux, tools around it, and open source. The openSUSE community is made up of multiple contributing communities that collaborate as part of a global open-source network. The openSUSE community develops, builds and maintains many of the packages, tools and infrastructure for the distribution. The community works together in an open, transparent and friendly manner as part of the global Free and Open Source Software community. openSUSE creates one of the world's best Linux distributions, as well as a variety of tools, such as OBS, OpenQA, Kiwi, YaST, OSEM and Uyuni. Distributions include a rolling release (Tumbleweed), a stable annual release (Leap) and operating systems for edge, embedded, cloud and containers through MicroOS and ALP.
The QEMU Project includes the QEMU open source machine emulator and virtualizer and also acts as an umbrella organization for the KVM Linux kernel module and rust-vmm community.
Rspamd is an email framework and spam filter
St. Jude Children's Research Hospital is a non-profit research hospital dedicated to advancing cures and means of prevention for children with catastrophic diseases. With respect to Google Summer of Code, we're interested in building modern, open-source infrastructure upon which large-scale scientific analyses can be done (typically focused on bioinformatics or genomics specifically).
Open source software to the public free of charge
The Rust Project is a group of developers and maintainers who build and support the Rust programming language. Organised into teams, they develop new features and mantain the Rust language, its compiler and standard library, and also all kinds of infrastructure that supports Rust. This application is being made by the Rust Foundation, the legal entity for the Rust Programming language, working in close association with representatives from the Rust Project.
Defend yourself against tracking and surveillance.
Bringing internationalization to software!
Writing robust tools for the Wayland protocol
Contributor counts are accepted projects per cycle.
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